Drag
chutes only understand
two things: weight and
speed. Body styles also
enter in, but somewhat
differently than you
would expect. To figure
out how much canopy you
need, use this simple
formula and match it to
your class.

(weight in lbs. of
car)*(speed in mph) /
1000.

This is the MAX
for S/C. If you have a
higher number than this,
you must move to a
stronger chute.